Google Keep is live. You can go check out Google's answer to Evernote at http://drive.google.com/keep.
Google officially announced the note-taking product some time ago, and after it cropped up briefly over the weekend, Google Keep is now really truly officially a real thing on the Internet that you can use.
Right now, the feature set seems relatively straight-forward and limited. Google basically wants to help you Keep track of what you're thinking about and doing. In addition to creating simple notes like the ones above, Google Keep also has a list tracking feature: